How to offset tax liability using ITC of capital goods?

Hi all, 

I got bought few machineries and using for both taxable & exempt purpose. 

I had claimed the full ITC in the purchased month. 

How & where to show ITC reversal for capital goods every month proportional to exempt turnover. 

And when I try to offset tax liability with ITC available for every month from capital goods(60 months), the system shows use full ITC to offset liabilities. how we can use full ITC from capital goods as per rule we need to use it over 60 months

Thanks in advance